20044020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{457}}^1$

素因数の和:529

約数の個数: 96

約数和(自身を含む): 60939648

約数和(自身を除く): 40895628

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 43, 51, 60, 68, 85, 86, 102, 129, 170, 172, 204, 215, 255, 258, 340, 430, 457, 510, 516, 645, 731, 860, 914, 1020, 1290, 1371, 1462, 1828, 2193, 2285, 2580, 2742, 2924, 3655, 4386, 4570, 5484, 6855, 7310, 7769, 8772, 9140, 10965, 13710, 14620, 15538, 19651, 21930, 23307, 27420, 31076, 38845, 39302, 43860, 46614, 58953, 77690, 78604, 93228, 98255, 116535, 117906, 155380, 196510, 233070, 235812, 294765, 334067, 393020, 466140, 589530, 668134, 1002201, 1179060, 1336268, 1670335, 2004402, 3340670, 4008804, 5011005, 6681340, 10022010, 20044020]

約数ペア:

[(1, 20044020), (2, 10022010), (3, 6681340), (4, 5011005), (5, 4008804), (6, 3340670), (10, 2004402), (12, 1670335), (15, 1336268), (17, 1179060), (20, 1002201), (30, 668134), (34, 589530), (43, 466140), (51, 393020), (60, 334067), (68, 294765), (85, 235812), (86, 233070), (102, 196510), (129, 155380), (170, 117906), (172, 116535), (204, 98255), (215, 93228), (255, 78604), (258, 77690), (340, 58953), (430, 46614), (457, 43860), (510, 39302), (516, 38845), (645, 31076), (731, 27420), (860, 23307), (914, 21930), (1020, 19651), (1290, 15538), (1371, 14620), (1462, 13710), (1828, 10965), (2193, 9140), (2285, 8772), (2580, 7769), (2742, 7310), (2924, 6855), (3655, 5484), (4386, 4570)]